Mount Joy, PA Weather Forecast & Current Conditions

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Mount Joy Weather Map
UTC Time: 9/20/2026, 17:44
Your Time:
Aeronautical Observation: Automated synoptic observations via NWS Gateway.
Auto-refresh in: 5:02

Mount Joy, PA Regional Weather

Expires:202609201800;;773045
ASUS41 KPHI 201710
RWRPHI

REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
100 PM EDT SUN SEP 20 2026

NOTE:  "FAIR" INDICATES FEW OR NO CLOUDS BELOW 12,000 FEET WITH NO
SIGNIFICANT WEATHER AND/OR OBSTRUCTIONS TO VISIBILITY.

 * = STATION DOES NOT REPORT PRECIPITATION (E.G. RAIN, SNOW, ETC.) 
        OR FOG.


PAZ043-044-047-054-055-060>062-066>071-201800-
EASTERN PENNSYLVANIA
  
CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
PHILADELPHIA   CLOUDY    75  67  76 S13G22    29.95F                  
NORTH PHILA    CLOUDY    69  67  93 CALM      29.96F                  
DOYLESTOWN     CLOUDY    66  65  96 CALM      29.95F                  
QUAKERTOWN*    CLOUDY    66  66 100 S5        29.96F                  
PERKASIE*      CLOUDY    66  66 100 CALM      29.96F                  
POTTSTOWN      CLOUDY    70  67  90 S5        29.96F                  
LANCASTER      CLOUDY    75  68  78 SW8       29.94F                  
COATESVILLE    CLOUDY    71  71  99 VRB5      29.95F                  
WEST CHESTER   CLOUDY    72  66  83 S7        29.97F                  
READING        CLOUDY    69  68  96 N3        29.93F                  
ALLENTOWN      LGT RAIN  66  65  96 CALM      29.95F                  
QN CITY/ALNTWN CLOUDY    66  64  94 CALM      29.96F                  
MOUNT POCONO   LGT RAIN  61  60  97 S5        29.98S FOG              
HAZLETON       CLOUDY    64  63  94 CALM      30.00F FOG              
LEHIGHTON      DRIZZLE   64  63  94 CALM      29.96F                  
WILKES BARRE   CLOUDY    63  62  97 NE5       29.96S FOG              

$$

SKY/WX - Weather  TMP - Temperature  DP - Dew Point  RH - Humidity
WIND - Wind Direction/Speed PRES - Barometric Pressure VSB - Visibility
WCI - Wind Chill Index E13G22 Wind - East Wind 13 mph/Gusts of 22 mph

Mount Joy, PA

Today
Thunderstorms
78°/ 58° 26°/ 14°
100%
Monday
Cloudy
68°/ 52° 20°/ 11°
70%
Tuesday
Rain Showers
62°/ 50° 17°/ 10°
70%
Wednesday
Rain Showers
62°/ 50° 17°/ 10°
50%
Thursday
Rain Showers
62°/ 48° 17°/
40%
Friday
Sunny
65°/ 48° 18°/
0%
Saturday
Sunny
68°20°
0%

Day: Showers. A chance of thunderstorms this afternoon. Some thunderstorms may produce heavy rainfall this afternoon. Highs in the upper 70s. South winds 10 to 15 mph, becoming southwest this afternoon. Chance of rain near 100 percent.

Night: Mostly cloudy. Showers likely with a slight chance of thunderstorms in the evening. Some thunderstorms may produce heavy rainfall in the evening. Humid with lows in the upper 50s. Northwest winds 5 to 10 mph. Chance of rain 70 percent.

York, PA

Today
Thunderstorms
78°/ 58° 26°/ 14°
100%
Monday
Mostly Cloudy
68°/ 52° 20°/ 11°
80%
Tuesday
Rain Showers
60°/ 48° 16°/
80%
Wednesday
Rain Showers
62°/ 48° 17°/
50%
Thursday
Rain Showers
62°/ 48° 17°/
40%
Friday
Sunny
65°/ 48° 18°/
0%
Saturday
Sunny
68°20°
0%

Day: Showers. A chance of thunderstorms this afternoon. Some thunderstorms may produce heavy rainfall this afternoon. Highs in the upper 70s. South winds 10 to 15 mph with gusts up to 25 mph. Chance of rain near 100 percent.

Night: Mostly cloudy. Showers likely with a slight chance of thunderstorms in the evening. Some thunderstorms may produce heavy rainfall in the evening. Humid with lows in the upper 50s. Northwest winds 5 to 10 mph. Chance of rain 70 percent.

Lebanon, PA

Today
Thunderstorms
75°/ 55° 24°/ 13°
100%
Monday
Mostly Cloudy
70°/ 50° 21°/ 10°
70%
Tuesday
Rain Showers
62°/ 48° 17°/
70%
Wednesday
Rain Showers
62°/ 48° 17°/
40%
Thursday
Rain Showers
65°/ 48° 18°/
40%
Friday
Sunny
65°/ 48° 18°/
0%
Saturday
Sunny
68°20°
0%

Day: Showers. A chance of thunderstorms this afternoon. Some thunderstorms may produce heavy rainfall this afternoon. Highs in the mid 70s. South winds 10 to 15 mph with gusts up to 25 mph, becoming southwest 5 to 10 mph this afternoon. Chance of rain near 100 percent.

Night: Mostly cloudy. Showers likely with a slight chance of thunderstorms in the evening. Some thunderstorms may produce heavy rainfall in the evening. Lows in the mid 50s. North winds 5 to 10 mph. Chance of rain 70 percent.

Harrisburg, PA

Today
Thunderstorms
75°/ 55° 24°/ 13°
100%
Monday
Mostly Cloudy
68°/ 50° 20°/ 10°
80%
Tuesday
Rain Showers
60°/ 48° 16°/
80%
Wednesday
Rain Showers
62°/ 48° 17°/
40%
Thursday
Rain Showers
62°/ 48° 17°/
40%
Friday
Sunny
65°/ 48° 18°/
0%
Saturday
Sunny
68°20°
0%

Day: Showers. A slight chance of thunderstorms this morning, then a chance of thunderstorms this afternoon. Some thunderstorms may produce heavy rainfall this afternoon. Highs in the mid 70s. South winds 5 to 10 mph with gusts up to 25 mph, becoming southwest this afternoon. Chance of rain near 100 percent.

Night: Mostly cloudy. A chance of showers with a slight chance of thunderstorms in the evening. Some thunderstorms may produce heavy rainfall in the evening. Lows in the mid 50s. North winds 5 to 10 mph with gusts up to 20 mph. Chance of rain 50 percent.

Carlisle, PA

Today
Thunderstorms
78°/ 55° 26°/ 13°
100%
Monday
Rain Showers
68°/ 52° 20°/ 11°
90%
Tuesday
Rain Showers
58°/ 48° 14°/
90%
Wednesday
Rain Showers
62°/ 48° 17°/
50%
Thursday
Rain Showers
62°/ 48° 17°/
50%
Friday
Sunny
65°/ 48° 18°/
0%
Saturday
Sunny
68°20°
0%

Day: Showers. A slight chance of thunderstorms this morning, then a chance of thunderstorms this afternoon. Some thunderstorms may produce heavy rainfall this morning. Some thunderstorms may produce heavy rainfall this afternoon. Highs in the upper 70s. Southwest winds 5 to 10 mph. Chance of rain near 100 percent.

Night: Mostly cloudy. Showers likely with a slight chance of thunderstorms in the evening. Some thunderstorms may produce heavy rainfall in the evening. Lows in the mid 50s. North winds 5 to 10 mph. Chance of rain 70 percent.

Reading, PA

Today
Thunderstorms
72°/ 58° 22°/ 14°
100%
Monday
Mostly Cloudy
70°/ 50° 21°/ 10°
70%
Tuesday
Rain Showers
62°/ 48° 17°/
70%
Wednesday
Rain Showers
62°/ 48° 17°/
40%
Thursday
Rain Showers
62°/ 48° 17°/
40%
Friday
Sunny
65°/ 48° 18°/
0%
Saturday
Sunny
68°20°
0%

Day: Rain this morning, then rain with a slight chance of thunderstorms this afternoon. Highs in the lower 70s. Southeast winds 10 to 15 mph, becoming southwest 5 to 10 mph this afternoon. Chance of rain near 100 percent.

Night: Mostly cloudy with rain likely with a chance of thunderstorms in the evening, then partly cloudy after midnight. Humid with lows in the upper 50s. Northwest winds 5 to 10 mph. Chance of rain 70 percent.

Newport, PA

Today
Thunderstorms
75°/ 55° 24°/ 13°
100%
Monday
Rain Showers
68°/ 50° 20°/ 10°
90%
Tuesday
Rain Showers
58°/ 48° 14°/
90%
Wednesday
Rain Showers
60°/ 48° 16°/
50%
Thursday
Rain Showers
62°/ 45° 17°/
50%
Friday
Sunny
65°/ 48° 18°/
0%
Saturday
Sunny
68°20°
0%

Day: A slight chance of thunderstorms. Rain this morning, then showers this afternoon. Some thunderstorms may produce heavy rainfall. Highs in the mid 70s. South winds 5 to 10 mph, becoming west this afternoon. Chance of rain near 100 percent.

Night: Mostly cloudy. Showers likely with a slight chance of thunderstorms in the evening. Some thunderstorms may produce heavy rainfall in the evening. Lows in the mid 50s. North winds 5 to 10 mph with gusts up to 20 mph. Chance of rain 70 percent.

Gettysburg, PA

Today
Thunderstorms
78°/ 55° 26°/ 13°
100%
Monday
Rain Showers
68°/ 52° 20°/ 11°
80%
Tuesday
Rain Showers
58°/ 48° 14°/
80%
Wednesday
Rain Showers
60°/ 48° 16°/
60%
Thursday
Rain Showers
62°/ 48° 17°/
50%
Friday
Sunny
65°/ 48° 18°/
0%
Saturday
Sunny
68°20°
0%

Day: Showers. A chance of thunderstorms this afternoon. Some thunderstorms may produce heavy rainfall this afternoon. Highs in the upper 70s. Southwest winds 10 to 15 mph. Chance of rain near 100 percent.

Night: Mostly cloudy. Showers likely with a slight chance of thunderstorms in the evening. Some thunderstorms may produce heavy rainfall in the evening. Cooler with lows in the mid 50s. North winds 5 to 10 mph with gusts up to 20 mph. Chance of rain 70 percent.

Pottsville, PA

Today
Thunderstorms
72°/ 52° 22°/ 11°
100%
Monday
Mostly Cloudy
68°/ 48° 20°/
70%
Tuesday
Rain Showers
58°/ 45° 14°/
70%
Wednesday
Rain Showers
60°/ 45° 16°/
40%
Thursday
Rain Showers
62°/ 45° 17°/
40%
Friday
Sunny
62°/ 45° 17°/
0%
Saturday
Sunny
65°18°
0%

Day: Rain with a slight chance of thunderstorms this morning, then rain this afternoon. Highs in the lower 70s. Southeast winds 5 to 10 mph with gusts up to 25 mph, becoming southwest this afternoon. Chance of rain near 100 percent.

Night: Mostly cloudy. Showers likely in the evening. Lows in the lower 50s. North winds 5 to 10 mph with gusts up to 20 mph. Chance of rain 70 percent.

Honey Brook, PA

Today
Thunderstorms
75°/ 58° 24°/ 14°
100%
Monday
Mostly Cloudy
68°/ 52° 20°/ 11°
70%
Tuesday
Rain Showers
62°/ 48° 17°/
70%
Wednesday
Rain Showers
62°/ 48° 17°/
40%
Thursday
Rain Showers
62°/ 48° 17°/
40%
Friday
Rain Showers
62°/ 48° 17°/
30%
Saturday
Sunny
68°20°
0%

Day: Rain. A chance of thunderstorms this afternoon. Highs in the mid 70s. South winds 5 to 10 mph with gusts up to 25 mph. Chance of rain near 100 percent.

Night: Mostly cloudy with rain with a chance of thunderstorms in the evening, then partly cloudy after midnight. Humid with lows in the upper 50s. West winds around 5 mph, becoming north after midnight. Chance of rain 90 percent.

West Chester, PA

Today
Thunderstorms
75°/ 58° 24°/ 14°
90%
Monday
Rain Showers
68°/ 52° 20°/ 11°
70%
Tuesday
Rain Showers
62°/ 50° 17°/ 10°
70%
Wednesday
Rain Showers
62°/ 50° 17°/ 10°
40%
Thursday
Rain Showers
62°/ 48° 17°/
30%
Friday
Rain Showers
62°/ 50° 17°/ 10°
30%
Saturday
Sunny
68°20°
0%

Day: Rain likely. A chance of thunderstorms this afternoon. Highs in the mid 70s. South winds 5 to 10 mph with gusts up to 20 mph. Chance of rain 70 percent.

Night: Mostly cloudy with rain with a chance of thunderstorms in the evening, then partly cloudy after midnight. Humid with lows in the upper 50s. West winds around 5 mph, becoming north after midnight. Chance of rain 90 percent.

Sunbury, PA

Today
Rain Showers
72°/ 55° 22°/ 13°
100%
Monday
Mostly Cloudy
68°/ 50° 20°/ 10°
70%
Tuesday
Rain Showers
60°/ 48° 16°/
70%
Wednesday
Rain Showers
62°/ 48° 17°/
40%
Thursday
Rain Showers
62°/ 45° 17°/
40%
Friday
Partly Cloudy
65°/ 48° 18°/
0%
Saturday
Sunny
68°20°
0%

Day: Rain likely this morning, then showers this afternoon. Highs in the lower 70s. South winds 5 to 10 mph with gusts up to 20 mph, becoming west this afternoon. Chance of rain near 100 percent.

Night: Mostly cloudy. A chance of rain in the evening. Lows in the mid 50s. North winds 5 to 10 mph with gusts up to 20 mph. Chance of rain 50 percent.

Selinsgrove, PA

Today
Rain Showers
72°/ 55° 22°/ 13°
100%
Monday
Rain Showers
68°/ 50° 20°/ 10°
80%
Tuesday
Rain Showers
58°/ 48° 14°/
80%
Wednesday
Rain Showers
60°/ 48° 16°/
50%
Thursday
Rain Showers
62°/ 48° 17°/
40%
Friday
Partly Cloudy
65°/ 48° 18°/
0%
Saturday
Sunny
68°20°
0%

Day: Rain likely this morning, then showers this afternoon. Highs in the lower 70s. South winds 5 to 10 mph, becoming west this afternoon. Chance of rain near 100 percent.

Night: Mostly cloudy. A chance of showers in the evening. Lows in the mid 50s. North winds 5 to 10 mph with gusts up to 20 mph. Chance of rain 50 percent.

Collegeville, PA

Today
Thunderstorms
75°/ 58° 24°/ 14°
100%
Monday
Mostly Cloudy
68°/ 52° 20°/ 11°
60%
Tuesday
Rain Showers
62°/ 48° 17°/
60%
Wednesday
Rain Showers
62°/ 48° 17°/
40%
Thursday
Rain Showers
62°/ 48° 17°/
30%
Friday
Rain Showers
65°/ 48° 18°/
30%
Saturday
Sunny
68°20°
0%

Day: Rain this morning, then rain with a chance of thunderstorms this afternoon. Highs in the mid 70s. South winds 5 to 10 mph with gusts up to 20 mph. Chance of rain near 100 percent.

Night: Mostly cloudy with rain with a chance of thunderstorms in the evening, then partly cloudy after midnight. Humid with lows in the upper 50s. West winds around 5 mph, becoming north after midnight. Chance of rain 90 percent.

Mifflintown, PA

Today
Thunderstorms
75°/ 55° 24°/ 13°
100%
Monday
Rain Showers
68°/ 50° 20°/ 10°
90%
Tuesday
Rain Showers
58°/ 48° 14°/
90%
Wednesday
Rain Showers
60°/ 48° 16°/
50%
Thursday
Rain Showers
62°/ 48° 17°/
50%
Friday
Partly Cloudy
65°/ 48° 18°/
0%
Saturday
Sunny
68°20°
0%

Day: Showers with a slight chance of thunderstorms. Some thunderstorms may produce heavy rainfall. Highs in the mid 70s. South winds around 5 mph, becoming west this afternoon. Chance of rain near 100 percent.

Night: Mostly cloudy. A chance of showers in the evening. Lows in the mid 50s. North winds 5 to 10 mph with gusts up to 20 mph. Chance of rain 50 percent.

Wilmington, DE

Today
Thunderstorms
78°/ 62° 26°/ 17°
70%
Monday
Rain Showers
72°/ 58° 22°/ 14°
60%
Tuesday
Rain Showers
65°/ 55° 18°/ 13°
60%
Wednesday
Rain Showers
65°/ 55° 18°/ 13°
50%
Thursday
Rain Showers
65°/ 52° 18°/ 11°
30%
Friday
Rain Showers
65°/ 52° 18°/ 11°
30%
Saturday
Sunny
68°20°
0%

Day: Mostly cloudy. Rain likely this morning, then a chance of rain and thunderstorms this afternoon. Highs in the upper 70s. South winds 5 to 10 mph with gusts up to 20 mph. Chance of rain 70 percent.

Night: Mostly cloudy. Rain likely with a chance of thunderstorms in the evening. Humid with lows in the lower 60s. Southwest winds around 5 mph, becoming north after midnight. Chance of rain 70 percent.

Bloomsburg, PA

Today
Thunderstorms
72°/ 52° 22°/ 11°
100%
Monday
Mostly Cloudy
68°/ 48° 20°/
70%
Tuesday
Rain Showers
60°/ 48° 16°/
70%
Wednesday
Rain Showers
62°/ 45° 17°/
40%
Thursday
Rain Showers
62°/ 45° 17°/
30%
Friday
Partly Cloudy
65°/ 48° 18°/
0%
Saturday
Sunny
68°20°
0%

Day: Rain with a slight chance of thunderstorms this morning, then rain likely this afternoon. Highs in the lower 70s. Southeast winds 5 to 10 mph with gusts up to 25 mph, becoming west this afternoon. Chance of rain near 100 percent.

Night: Mostly cloudy. A chance of rain in the evening. Lows in the lower 50s. North winds 5 to 10 mph. Chance of rain 50 percent.

Allentown, PA

Today
Thunderstorms
70°/ 58° 21°/ 14°
100%
Monday
Mostly Cloudy
68°/ 50° 20°/ 10°
50%
Tuesday
Rain Showers
62°/ 48° 17°/
50%
Wednesday
Rain Showers
62°/ 48° 17°/
40%
Thursday
Rain Showers
62°/ 48° 17°/
30%
Friday
Rain Showers
65°/ 48° 18°/
30%
Saturday
Sunny
68°20°
0%

Day: Rain. A slight chance of thunderstorms this afternoon. Highs around 70. South winds 5 to 10 mph with gusts up to 20 mph. Chance of rain near 100 percent.

Night: Mostly cloudy with rain with a slight chance of thunderstorms in the evening, then partly cloudy after midnight. Lows in the upper 50s. North winds 5 to 10 mph. Chance of rain 90 percent.

Media, PA

Today
Thunderstorms
75°/ 62° 24°/ 17°
90%
Monday
Rain Showers
70°/ 55° 21°/ 13°
60%
Tuesday
Rain Showers
65°/ 52° 18°/ 11°
60%
Wednesday
Rain Showers
65°/ 52° 18°/ 11°
40%
Thursday
Rain Showers
62°/ 52° 17°/ 11°
30%
Friday
Rain Showers
65°/ 52° 18°/ 11°
30%
Saturday
Partly Cloudy
68°20°
0%

Day: Rain this morning, then rain likely with a chance of thunderstorms this afternoon. Highs in the mid 70s. South winds 5 to 10 mph with gusts up to 20 mph. Chance of rain 90 percent.

Night: Mostly cloudy. Rain with a chance of thunderstorms in the evening. Humid with lows in the lower 60s. West winds around 5 mph, becoming north after midnight. Chance of rain 80 percent.

Chambersburg, PA

Today
Thunderstorms
78°/ 55° 26°/ 13°
100%
Monday
Rain Showers
68°/ 52° 20°/ 11°
90%
Tuesday
Rain Showers
58°/ 48° 14°/
90%
Wednesday
Rain Showers
60°/ 48° 16°/
60%
Thursday
Rain Showers
62°/ 48° 17°/
50%
Friday
Sunny
65°/ 48° 18°/
0%
Saturday
Sunny
68°20°
0%

Day: Showers. A slight chance of thunderstorms this morning, then a chance of thunderstorms this afternoon. Some thunderstorms may produce heavy rainfall this morning. Some thunderstorms may produce heavy rainfall this afternoon. Highs in the upper 70s. South winds 5 to 10 mph with gusts up to 20 mph, becoming southwest this afternoon. Chance of rain near 100 percent.

Night: Mostly cloudy. A chance of showers with a slight chance of thunderstorms in the evening, then a slight chance of showers after midnight. Some thunderstorms may produce heavy rainfall in the evening. Cooler with lows in the mid 50s. North winds 5 to 10 mph with gusts up to 20 mph. Chance of rain 50 percent.

Names listed above may include county names.

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